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https://issues.apache.org/jira/browse/KYLIN-2657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Billy Liu updated KYLIN-2657:
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Summary: Fix Cube merge NPE whose TopN dictionary not found (was: Cube
merge TopN dictionary not found, cause NPE)
> Fix Cube merge NPE whose TopN dictionary not found
> --------------------------------------------------
>
> Key: KYLIN-2657
> URL: https://issues.apache.org/jira/browse/KYLIN-2657
> Project: Kylin
> Issue Type: Bug
> Components: Job Engine
> Reporter: Roger Shi
> Assignee: Roger Shi
> Fix For: v2.1.0
>
>
> One TopN measure with two group-by columns, and both of them are in fact
> table. If one cardinality is high and the other is low, merging Cube may fail
> for NPE (dict not found).
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